<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			div{
				width: 800px;
				height: 300px;
				background: red;
				margin: 0 auto;
				box-shadow: 10px 10px 10px;
			}
		</style>
	</head>
	<body>
		<div>
			box-shadow:X轴位移，Y轴位移，模糊程度，模糊大小，颜色，inset
		</div>
	</body>
</html>
